where \({\cal P}\)  is parity
and where
the symbol \({\cal C}\)  denotes the so called charge [1]}.
The introduction of such an ansatz
proved well motivated. In many models
it appeared to offer
a perceivable simplification of the
calculations as well as
of the subsequent necessary extraction of the
model-dependent
testable and also, in principle,
falsifiable predictions [2]}, [3]}.
